Hi Fang,
I write here again because I'm still facing some issues with FreeMaster settings.
After using BDM communication as you suggested in your reply I was able to make run Scope.
Now I'm trying to use Recorder, so I call the FMSTR_Recorder(); function iniside my ISR but when I try to run a recorder from FreeMaster application I get the below reported message

Actually I configured FreeMaster to use the LPUART (#define FMSTR_USE_LPUART 1), but considering that I'm using the BDM communication plug-in I also tried to select Packet Driven BDM communication interface setting #define FMSTR_USE_PDBDM 1, but this change seems to have no impact on FreeMaster behaviour.
As well as using the LPUART the scope keeps working but I'm not able to make run the recorder.
To try to give you some more information I also attach the recorder properties window, where you can see that FreeMaster is not able to get the board time base for example, even if in my code I set it as 100us with this macro #define FMSTR_REC_TIMEBASE FMSTR_REC_BASE_MICROSEC(100)

Have you got any idea about how can I fix this issue?
Thank you in advance.
Alberto